Swiss gold quarter repeating watch with music Circa 1815

Gold open faced repeating pocket watch
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A very fine and rare Swiss gentleman’s quarter repeating pocket watch with musical movement, circa 1815.
The watch features an 18-carat gold case with an engine-turned back cover and reeded band. The enamel dial has Arabic numerals and blued Breguet hands. The movement is a gilt bridge type with two hammers and two gongs. It also has a musical movement with 25 tuned vibrating blades, a pinned disc, and a cylinder escapement. The ring balance is powered by one barrel each for the going and striking train.
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Diameter: 57 mm
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Weight: 141 g
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Signed: No name